Interesting idea, but they would need to be strong servos too, to resist the force of the wind rushing over them and pushing them down/up. Servo actuated airbrakes would be good though, to take the load off the esc when slowing down from high speed- hate to see the brakes lockup when doing 80+ mph- front flip carnage indeed..

Doesn't he run in RWD only on speed runs?

I run 4wd on all the trucks and buggy.